package com.example.springbootdemo;

import io.netty.buffer.ByteBuf;

/**
 * @Author: zhangrongqing
 * @Date: 2020/2/19 15:44
 */
public class BoxDemo {
    public static void main(String[] args) {
        char c = '1';
        char d = '2';
        byte result = (byte)(c + d);
        System.out.println((byte)c);
        System.out.println(result);
    }
}
